Provided herein are methods and systems relating to location-based services such as providing a geofencing, outputting location-based information on a mobile device, varying transmissions to and from a mobile device, and providing location-based alerts. More specifically, a method can include receiving a task on a mobile device, associating the task with a location, generating a geofence around the location associated with the task, tracking a current location of a the mobile device, and generating an alert associated with the task when the current location is within the geofence.